I've used suboxone rectally on a handful of occasions.
Simple solution was made and administered via syringe after a thorough cleaning. Doses have ranged from around 1mg to about 4mg.
I've found the method to be nice, and sometimes even gives a little "rush." (This is something I don't get a lot with opiates, as I haven't used IV in many years, and don't really plan to...)
I am,however,wondering about the rectal bioavailability for naloxone? And, at what dose do you think this might negatively impact one's experience?